4 Channel 5V Arduino Relay Module Control Module With Surface Mount

4 Channel Arduino 5V Relay Module Control Module With Surface Mount

Specification:

Description:

1.The input signal can be 3.3 V 5 V

2.Are low level effective. Support 3.3V 5 V

3.It has jump line. Can set high and low level

4.The power source and the relay system power can be divided

5.A set of jump cap. Jump hat off. Can separate the power supply

6.Only one way of high level can be triggered

Package Including:

1*Relay Module 

Arduino test code:

int BASE = 2; / / first a relay connected to I / O pins
int NUM = 4; / / the total number of relay
void setup ()
{for (int i = BASE; i <BASE + NUM; i + +)
{pinMode (i, OUTPUT); / / set the digital I / O pin as an output}

void loop ()
 

for (int i = BASE; i <BASE + NUM; i + +)
{digitalWrite (i, LOW); / / set the digital I / O pin output is "low", that is gradually closed relay
delay (200); / / delay}
for (int i = BASE; i <BASE + NUM; i + +)
 

{digitalWrite (i, HIGH); / / set the digital I / O pin output is "low", that gradually open relay
delay (200); / / delay}
 

Factory Pictures

Competitive Advantage:

1. Convenient & Friendly Customer Service
2. Low Prices Direct From Factory Suppliers
3. Fast Delivery Around the World. 
4. High Quality With Global Standards. 
5. 1 Year Factory Warranty
6. Safe Shipping Way and Payment